Error 80070643 when trying to install BitLocker and EFS enhancemen

Windows Visita Ultimate, trying to install the BitLocker and EFS enhancements
through Windows Update, keeps failing with the following:

BitLocker and EFS enhancements
Installation status: Failed
Error details: Code 80070643
Update type: Optional
More information:
http://go.microsoft.com/fwlink/?LinkID=80936

Of course, that link doesn't actually go anywhere but the Vista website. I
do have Office 2003 installed (as well as FrontPage 2003), and searching
Google as well as here shows that the error Code 80070643 is apprently an
Office issue. I've tried all the fixes, except uninstalling Office (which is
not an option at this point.) I've found numerous posts about this problem,
so I'm not alone; surely Microsoft could have a KB article in it! :-(

So far, I've tried (with no success):

Copying the OSA.EXE from the Office CD
Stopping the Cryptograhic service, then renaming the
c:\WINDOWS\system32\CatRoot2\edb.log, then restarting the service

I have not deleted the CatRoot2 folder, though some sites have suggested
that as a fix.

Anyone else have any suggestions, other than uninstalling Office just to get
this update?

I've been having the same problem and I have Windows XP. It fails to install
every time I try it. I don't know what to do. It would be nice if someone
knew how to fix this.

"Hans" wrote:

> Windows Visita Ultimate, trying to install the BitLocker and EFS enhancements
> through Windows Update, keeps failing with the following:
>
> BitLocker and EFS enhancements
> Installation status: Failed
> Error details: Code 80070643
> Update type: Optional
> More information:
> http://go.microsoft.com/fwlink/?LinkID=80936
>
> Of course, that link doesn't actually go anywhere but the Vista website. I
> do have Office 2003 installed (as well as FrontPage 2003), and searching
> Google as well as here shows that the error Code 80070643 is apprently an
> Office issue. I've tried all the fixes, except uninstalling Office (which is
> not an option at this point.) I've found numerous posts about this problem,
> so I'm not alone; surely Microsoft could have a KB article in it! :-(
>
> So far, I've tried (with no success):
>
> Copying the OSA.EXE from the Office CD
> Stopping the Cryptograhic service, then renaming the
> c:\WINDOWS\system32\CatRoot2\edb.log, then restarting the service
>
> I have not deleted the CatRoot2 folder, though some sites have suggested
> that as a fix.
>
> Anyone else have any suggestions, other than uninstalling Office just to get
> this update?